Netori Harem: New life as a hunter and gatherer - Chapter 38: Rewards

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

A child was born unable to cultivate Inner Strength. In order to gain his father's attention and regard, he resolutely chose the painful and difficult path of cultivating Outer Strength. As spring gave way to autumn, time flew by, and the child grew up... he became a young man. What truly changed his destiny was a mysterious Crystal Stone formed from a meteor—the Meteor Tear. This Meteor Tear, unbeknownst to the young man, merged into his body, and like a caterpillar transforming into a butterfly, the young man metamorphosed... And with that transformation, everything changed. And his father finally came to realize the astonishing strength of the son he had never truly invested his Heart Power in...

ROMANCE! APOCALYPSE! DRAMA LOVING GOD! REBIRTH!The hospital lights buzzed faintly above her, the edges of her vision already blurring into white. Blood pooled in her lungs. No family. No friends. Just the relentless beeping of a monitor counting down her last seconds. Rosalie stared at the sterile ceiling, tears sliding sideways across her temple.“I didn’t even get to do anything.” She whispered. “No love. No one will remember I was here. If anyone’s out there… God, fate, whatever you are, hear me. Let me live again. Somewhere. Anywhere. Let me matter.”When she woke up again, she wasn’t Rosalie anymore. She was Mei Shen, a forgotten noblewoman trapped in a story of cold nights and cruel tyrant hands. One night. No promises. A pregnancy with a tyrant's child. She ran. Hid. Escaped fate’s cruel grip.But less than a month later everything changed.“Subject detected. Lianwei Voss has entered your proximity. Obsession level: 85% - critical. Imminent event : Apocalypse countdown initiated -time remaining: Unknown. New genre unlocked: Dark romance -Obsession + villainous devotion activated.”The game had changed. The rules were gone.“You broke the script. But you will never break me.”God whispered in her ear.The child she carried was a weapon, her vengeance a fire. And somewhere in the darkness, the emperor’s obsession burned hotter than ever.One night, beneath the empire’s broken skyline, she found a stranger, broken, bleeding, unknown. She saved him. Not knowing she was cradling her own nightmare.

Henry is a university graduate who happens to be working as a hotel receptionist, though with big dreams of being more than that. All these change for good one day when he finds a way of cracking a very sophisticated technological system, which ultimately empowers him to formulate and develop leading-edge inventions from his bedroom.With a determined mind not only to conquer the market but also to move out of his gray life, Henry starts into his journey of fame by introducing a number of radical technologies that capture the interest of the whole world and hold it.